Product Review (submitted on July 23, 2017):
The thumb screw is too small to open the knife. This knife is not sharp. I can get a much sharper edge on my $20 knives. I sharpen this blade and screwed it up so now I have to see if I can buy a new blade. I am really sorry I spent $170.00 on this knife. I can't see the difference between this and a 40.00 knife.